Ensure your AirMini is discoverable (flashing blue) and Bluetooth is on. Limit other Bluetooth devices nearby. In your phone’s settings, unpair Resmedxxxxxx (last 6 digits of your AirMini serial #), unplug AirMini, reboot your phone, then retry pairing. For help, see pages 9-11 of the user guide or email AirMiniAppSupport@Resmed.com.